Wire-seat structure.



J. PETRZILKA.

WIRE SEAT STRUCTURE.

APPLICATION FILED JUL 19. 1915.

Patented Jan. 30, 1917.

JOSJEF PETBZILKA, 01F RAOIN'E, WISCONSIN, ASSIGNOR, BY MESN E ASSIGNMENTS, TO

THE NASH MOTORS COMPANY, 015 KENOSHA, WISCONSIN, A CORPORATION 015 MARY- LAND.

WIRE-SEAT STRUCTURE.

Patented Jan so, 1917.

Application filed July 19, 1915. Serial No. 40,631.

To all whom it may concern:

Be it known that 1, JOSH PETRZILKA, a citizen of the United States, residing at Racine, in the county of Racine and State of Wisconsin, have invented certain new and useful Improvements in Wire-Seat Structures, of which the following is a specification. v

The ordinary form of wire seat structure comprises a wire base frame supporting a plurality of vertically positioned springs adapted to bear against the under portion of the seat. The seat portion is secured to an upper frame member and a leather or other suitable covering incloses the seat .portion and has downwardly extending sidesto complete the seat structure between the upper and lower frame members. Considerable difliculty has been experienced in properly securing the lower edge of the covering to the lower frame member.

My invention resides in the means for securing the lower edge of the covering to the lower frame member whereby a durable and rigid connection is made and the parts may be rapidly and economically assembled,

My preferred form of construction is shown in the accompanying drawing in which-- Figure 1 is a section on the line 22 of Fig. 2. Fig. 2 is a section of a portion of the seat structure showing a partial plan of the base.

Referring now more particularly to the drawing, my improved form of construction comprises a lower wire frame member 3, bent to the desired form to be given to the seat as a whole, and a similarlyshaped upper frame member 4. Tnterposed between these two frame members 3 and 4 are a plurality of springs 5 which are held in proper relation-to each other and tothe frame members by suitable transverse and longitudinal tierods 6 and 7. The tie-rods extend between opposite sides of the base frame 3 and the ends of such rods are turned about the base frame 3 so as to form one or more convolutions and are provided with cover retaining base frame a tie-rod will be secured thereto and will have a beyond the base frame. The seat proper is preferably formed by an inner supporting fabric of canvas, bur

lap, or other coarsely woven material 9,

against-which the upper ends of the springs 5 bear, and an outer covering 10 preferably composed of leather or other suitable and durable material which is so cut as to leave a considerable space between it and the covering 9 to receive a suitable filling 11. It is customary to stitch or otherwise secure the projecting end 8 extending outer covering 10 to the upper frame 4: but 7 upper and lower frames, together with the springs and tie-rods, are first assembled and the ends 8 of the tie-rods are left in a position at substantially right angles to the body of therod. The lower covering 9, outer covering 10 and filling 11, are then suitably attached whereupon the lower edge of the covering 10 is brought into position whereby the projecting ends 8 of the tie-rods are passed through the eyelets 13 and are then bent inwardly and around the bead 12, thus firmly securing the lower edge of the covering 10 to the base frame 3.

It is of course obvious that instead of extending the ends of the tie-rod 6 so as to provide the necessary attaching means, a separate section of wire'might be used and suitably connected to the base frame 3 whereby it would perform the same function as the extending ends 8 and, therefore, without limiting my invention to the precise details of construction herein shown.

I claim:

1. A wire seat structure comprising upper and lower wire marginal frames, a plurality' of springs interposed between said frames, a covering for the seat structure extending downwardly between the upper and lower frames, wires extending between ment with said wires; the ends of said wires being normally straight to be received in said eyelets "and then bent inwardly and upwardly to' draw the lower edge of the covering inwardly and toward the bottom ofsaid seat structure.

2. A wire seat structure comprising upper and lower marginal wire frames, a plurality of springs interposed between said frames, a covering for the seat structure extending downwardly between said upper and lowerframes, a reinforcing wire secured in the lower .end of said covering, wires extending between the sides of the'lower' frame and bel JOSEF PETRZILKA.

Witnesses:

.FRANK VESELIK,

Virus. J Svrmvsxy. 

